v3.25.3
OTHER COMPREHENSIVE INCOME - Schedule of Changes in Accumulated Other Comprehensive Income, Net of Tax (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2025
USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period $ 8,142.5
Balance at end of period 8,757.1
Total  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (127.4)
Amounts reclassified from AOCI 4.3
Balance at end of period (123.1)
Cash Flow Hedges  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (17.7)
Amounts reclassified from AOCI 1.3
Balance at end of period (16.4)
Pension and Postretirement Benefit Plans  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance at beginning of period (109.7)
Amounts reclassified from AOCI 3.0
Balance at end of period $ (106.7)